US5895572A - Porous monolithic support for filtration membranes - Google Patents
Porous monolithic support for filtration membranes Download PDFInfo
- Publication number
- US5895572A US5895572A US08/530,934 US53093495A US5895572A US 5895572 A US5895572 A US 5895572A US 53093495 A US53093495 A US 53093495A US 5895572 A US5895572 A US 5895572A
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- US
- United States
- Prior art keywords
- support
- channels
- section
- support according
- partitions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 title claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 14
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000011343 solid material Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/066—Tubular membrane modules with a porous block having membrane coated passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/06—Details of supporting structures for filtering material, e.g. cores
Definitions
- the present invention relates to a porous monolithic support, in particular of ceramic material, for filtration membranes.
- Monoliths pierced with channels on which the membranes are deposited such as, for example, those described in U.S. Pat. No. 4,069,157, EP-A-470,340 and EP-A-585,152, have the twofold advantage of having a large exchange surface area of the membrane per unit of volume and a very good permeability factor.
- the permeability factor is, for example, defined by U.S. Pat. No. 4,069,157.
- these supports and membranes in particular when they are made of inorganic and/or ceramic material, due to their mechanical strength and their chemical, biological and thermal inertia, have a very long lifetime of use and can operate under extreme conditions of use (pH, temperature, pressure, radiation, and the like).
- channels are situated in different regions of the support, they do not operate in the same way and it is observed that certain channels are subject to preferential blinding.
- Monoliths containing many small channels are therefore not suitable for the filtration of fluids of this type.
- the present invention in order in particular to solve the above problem, provides a technical solution which makes it possible, on the one hand, to increase the diameter of the channels and, on the other hand, to reduce the number of channels, while retaining the largest possible filtering surface area and appropriate mechanical properties.
- the present invention relates, in fact, to a porous monolithic support for filtration membranes containing channels, the internal surface of which supports the membranes, characterized in that the said support contains at least two channels, each channel having:
- the number of channels be between 2 and 8 inclusive, and preferably between 3 and 4 inclusive.
- the sharp angles of the sections of the channels are rounded in order to decrease the pressure drop and the blinding.
- the support has a cross-section having a central axis of symmetry.
- This cross-section can advantageously be circular or hexagonal.
- all the channels are identically arranged within the monolith. Under these conditions, all the channels operate similarly during filtration, that is to say that all the channels filter and are blinded substantially identically and there is no preferential blinding.
- the support according to the invention while retaining the advantage of the monoliths with respect to the single pipe, makes it possible to obtain a greater expanded surface area of the membranes for a given bulk, while retaining a large section of the channels for the passage of the fluid to be filtered.
- the monolith according to the invention is preferably made of ceramic material, as, for example, according to the teaching of U.S. Pat. No. 4,069,157, EP-A-470,340 and EP-A-585,152 mentioned above, it can also be made of metal, of carbon and, generally, of any inorganic material.
- an external diameter advantageously of between 6 and 40 mm and a length of between 10 cm and 2 m are recommended according to the invention, in the case of the use of a support of cylindrical section.
- the thickness of the interchannel partitions and of the partition of each channel with the external surface of the support is generally between 0.5 and 3 mm.
- the supports according to the invention can be prepared by conventional extrusion processes of a ceramic paste through a die of suitable shape. It is recommended in this case to follow the teaching of EP-A-585,152 mentioned above.
- the dies used have a shape suitable for the angles with respect to the channels to be rounded.
- This support is then sintered.
- This support generally has a pore diameter of between 2 and 10 ⁇ m.
- An inorganic and/or organic membrane for microfiltration (pore diameter of between 0.1 and 1.5 ⁇ m) or for ultrafiltration (pore diameter of between 2 nm and 0.1 ⁇ m) is deposited on this support within the channels and optionally at the external surface of the support.
- These membranes are prepared by depositing at least one layer of inorganic particles and/or of polymer by using, for example, the starting materials and the method described in the abovementioned Patent Application EP-A-585,152.
- the monoliths according to the invention are more particularly advantageous for filtering suspensions which are heavily laden with solid materials and/or which are very viscous, such as, for example, certain fermentation musts, papermaking effluents, suspensions of fibrous products and petroleum products.
- FIG. 1 is a cross-section of a cylindrical support containing 3 channels
- FIG. 2 is a cross-section of a cylindrical support containing 5 channels
- FIG. 3 is a cross-section of a support of hexagonal section containing 6 channels
- FIG. 4 is a cross-section of a support of hexagonal section containing 4 channels.
- FIG. 1 shows a monolithic support 1 made of ceramic containing 3 substantially identical channels 2, 3 and 4.
- each channel has sections of similar shape and interchannel partitions 5, 6 and 7 of substantially constant thickness, each channel additionally having a partition 8, 9 and 10 with the outside of the support of the same thickness and of the same surface area.
- the sharp angles 11, 12 and 13 are rounded for the purpose of improving movement of the fluid to be filtered and of facilitating deposition of the membrane 14, 15 and 16 deposited at the internal surface of each channel 2, 3 and 4 respectively.
- FIG. 2 it is seen that a support of circular section contains 5 identical channels.
- FIGS. 3 and 4 it is seen that a support of hexagonal section contains 6 and 4 identical channels respectively.
Abstract
The present invention relates to a porous monolithic support (1) for filtration membranes containing channels (2, 3, 4), the internal surface of which supports the membranes (14, 15, 16), characterized in that the said support contains at least two channels, all of said channels having:
(a) substantially similar sections,
(b) interchannel partitions (5, 6, 7) and partitions with the outside of the support (8, 9, 10) of substantially constant thickness and
(c) a partition with the outside of the support of substantially the same surface area.
Application to the tangential filtration of viscous fluids and/or of fluids containing solid materials.
Description
The present invention relates to a porous monolithic support, in particular of ceramic material, for filtration membranes.
These membranes have been known for a long time for their separating properties and are rapidly expanding in many sectors of activity, such as agribusiness, biotechnologies, treatment of drinking and industrial water, the pharmaceutical industry and the nuclear industry.
Monoliths pierced with channels on which the membranes are deposited, such as, for example, those described in U.S. Pat. No. 4,069,157, EP-A-470,340 and EP-A-585,152, have the twofold advantage of having a large exchange surface area of the membrane per unit of volume and a very good permeability factor. The permeability factor is, for example, defined by U.S. Pat. No. 4,069,157.
In addition, these supports and membranes, in particular when they are made of inorganic and/or ceramic material, due to their mechanical strength and their chemical, biological and thermal inertia, have a very long lifetime of use and can operate under extreme conditions of use (pH, temperature, pressure, radiation, and the like).
However, in certain cases, problems of use are posed by these supports.
As the channels are situated in different regions of the support, they do not operate in the same way and it is observed that certain channels are subject to preferential blinding.
Moreover, it proves difficult to filter very viscous and/or heterogeneous fluids which contain solid fibrous materials of textile or papermaking origin.
In fact, in the case of known multichannel monoliths generally having more than 7 channels of square or circular section, as described in U.S. Pat. No. 4,069,157 and EP-A-470,340, a fibre can be found in several channels at the same time, at the inlet of the monolith, and repetition of the phenomenon can lead to obstruction of the monolith.
Monoliths containing many small channels are therefore not suitable for the filtration of fluids of this type.
The present invention, in order in particular to solve the above problem, provides a technical solution which makes it possible, on the one hand, to increase the diameter of the channels and, on the other hand, to reduce the number of channels, while retaining the largest possible filtering surface area and appropriate mechanical properties.
The present invention relates, in fact, to a porous monolithic support for filtration membranes containing channels, the internal surface of which supports the membranes, characterized in that the said support contains at least two channels, each channel having:
(a) substantially similar sections,
(b) interchannel partitions and partitions with the outside of the support of substantially constant thickness and
(c) a partition with the outside of the support of substantially the same surface area.
It is recommended that the number of channels be between 2 and 8 inclusive, and preferably between 3 and 4 inclusive.
Moreover, the sharp angles of the sections of the channels are rounded in order to decrease the pressure drop and the blinding.
The support has a cross-section having a central axis of symmetry. This cross-section can advantageously be circular or hexagonal.
In the monolith according to the invention, all the channels are identically arranged within the monolith. Under these conditions, all the channels operate similarly during filtration, that is to say that all the channels filter and are blinded substantially identically and there is no preferential blinding.
In addition, the support according to the invention, while retaining the advantage of the monoliths with respect to the single pipe, makes it possible to obtain a greater expanded surface area of the membranes for a given bulk, while retaining a large section of the channels for the passage of the fluid to be filtered.
While the monolith according to the invention is preferably made of ceramic material, as, for example, according to the teaching of U.S. Pat. No. 4,069,157, EP-A-470,340 and EP-A-585,152 mentioned above, it can also be made of metal, of carbon and, generally, of any inorganic material.
In the case of the use of ceramic material, an external diameter advantageously of between 6 and 40 mm and a length of between 10 cm and 2 m are recommended according to the invention, in the case of the use of a support of cylindrical section. The thickness of the interchannel partitions and of the partition of each channel with the external surface of the support is generally between 0.5 and 3 mm.
The supports according to the invention can be prepared by conventional extrusion processes of a ceramic paste through a die of suitable shape. It is recommended in this case to follow the teaching of EP-A-585,152 mentioned above.
Preferably, the dies used have a shape suitable for the angles with respect to the channels to be rounded.
The support is then sintered. This support generally has a pore diameter of between 2 and 10 μm. An inorganic and/or organic membrane for microfiltration (pore diameter of between 0.1 and 1.5 μm) or for ultrafiltration (pore diameter of between 2 nm and 0.1 μm) is deposited on this support within the channels and optionally at the external surface of the support. These membranes are prepared by depositing at least one layer of inorganic particles and/or of polymer by using, for example, the starting materials and the method described in the abovementioned Patent Application EP-A-585,152.
The monoliths according to the invention are more particularly advantageous for filtering suspensions which are heavily laden with solid materials and/or which are very viscous, such as, for example, certain fermentation musts, papermaking effluents, suspensions of fibrous products and petroleum products.
Other advantages and characteristics of the invention will become apparent on reading the following implementational example given by way of illustration, without implied limitation. Reference will be made to the appended drawing in which:
FIG. 1 is a cross-section of a cylindrical support containing 3 channels,
FIG. 2 is a cross-section of a cylindrical support containing 5 channels,
FIG. 3 is a cross-section of a support of hexagonal section containing 6 channels,
FIG. 4 is a cross-section of a support of hexagonal section containing 4 channels.
FIG. 1 shows a monolithic support 1 made of ceramic containing 3 substantially identical channels 2, 3 and 4.
It is seen that each channel has sections of similar shape and interchannel partitions 5, 6 and 7 of substantially constant thickness, each channel additionally having a partition 8, 9 and 10 with the outside of the support of the same thickness and of the same surface area.
It is additionally seen that the sharp angles 11, 12 and 13 are rounded for the purpose of improving movement of the fluid to be filtered and of facilitating deposition of the membrane 14, 15 and 16 deposited at the internal surface of each channel 2, 3 and 4 respectively.
In FIG. 2, it is seen that a support of circular section contains 5 identical channels.
In FIGS. 3 and 4, it is seen that a support of hexagonal section contains 6 and 4 identical channels respectively.
Claims (12)
1. Porous monolithic support for filtration membranes containing channels, the internal surface of which supports the membranes, wherein said support has a central axis of symmetry and contains at least two channels identically arranged within said support all of said channels having:
(a) substantially similar sections, and
(b) interchannel partitions and partitions with the outside of the support of substantially constant thickness.
2. Support according to claim 1, characterized in that the number of channels is between 2 and 8 inclusive.
3. Support according to claim 1, characterized in that the sharp angles of the sections of the channels are rounded.
4. Support according to claim 1, characterized in that the support has a section selected from the group consisting of a circular section and a hexagonal section.
5. The support according to claim 2, characterized in that the number of channels is between 3 and 4 inclusive.
6. The support according to claim 2 characterized in that the sharp angles of the sections of the channel are rounded.
7. The support according to claim 2 characterized in that the support has a section selected from the group consisting of a circular section and a hexagonal section.
8. The support according to claim 3 characterized in that the support has a section selected from the group consisting of a circular section and a hexagonal section.
9. The support according to claim 8, wherein the section is circular, the said support being a ceramic material.
10. The support according to claim 9, wherein the said support has an external diameter of between 6 and 40 mm.
11. The support according to claim 10, wherein the said support has a length of between 10 cm and 2 m.
12. The support according to claim 9, wherein the thickness of the interchannel partitions and partitions with the outside of the support is between 0.5 and 3 mm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9411568 | 1994-09-28 | ||
FR9411568A FR2724850B1 (en) | 1994-09-28 | 1994-09-28 | POROUS MONOLITHE SUPPORT FOR FILTRATION MEMBRANE |
Publications (1)
Publication Number | Publication Date |
---|---|
US5895572A true US5895572A (en) | 1999-04-20 |
Family
ID=9467353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/530,934 Expired - Fee Related US5895572A (en) | 1994-09-28 | 1995-09-19 | Porous monolithic support for filtration membranes |
Country Status (11)
Country | Link |
---|---|
US (1) | US5895572A (en) |
EP (1) | EP0704236B1 (en) |
JP (1) | JP3150275B2 (en) |
AT (1) | ATE190864T1 (en) |
CA (1) | CA2159264C (en) |
DE (1) | DE69515773T2 (en) |
DK (1) | DK0704236T3 (en) |
ES (1) | ES2145232T3 (en) |
FR (1) | FR2724850B1 (en) |
GR (1) | GR3033506T3 (en) |
PT (1) | PT704236E (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6352577B1 (en) * | 1994-07-29 | 2002-03-05 | Battelle Memorial Institute | Microchannel laminated mass exchanger and method of making |
US6375014B1 (en) * | 1997-04-09 | 2002-04-23 | Societe Des Ceramiques Techniques | Graded permeability macroporous support for crossflow filtration |
US20030155290A1 (en) * | 2000-02-21 | 2003-08-21 | Philippe Chanaud | Multichannel element and method for making same |
US20100224540A1 (en) * | 2009-03-06 | 2010-09-09 | Rolchigo Philip M | Membrane Module for Fluid Filtration |
US8062521B2 (en) * | 1998-05-29 | 2011-11-22 | Crystaphase Products, Inc. | Filtering medium and method for contacting solids-containing feeds for chemical reactors |
CN102858438A (en) * | 2010-03-10 | 2013-01-02 | 高技术与膜工业公司 | Substrate geometry for a filtration membrane |
US10500581B1 (en) | 2003-03-25 | 2019-12-10 | Crystaphase International, Inc. | Separation method and assembly for process streams in component separation units |
US10557486B2 (en) | 2016-02-12 | 2020-02-11 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10744426B2 (en) | 2015-12-31 | 2020-08-18 | Crystaphase Products, Inc. | Structured elements and methods of use |
US11052363B1 (en) | 2019-12-20 | 2021-07-06 | Crystaphase Products, Inc. | Resaturation of gas into a liquid feedstream |
US11752477B2 (en) | 2020-09-09 | 2023-09-12 | Crystaphase Products, Inc. | Process vessel entry zones |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2720953B1 (en) * | 1994-06-08 | 1996-08-30 | Tami Ind | Multichannel inorganic element for the filtration of a fluid. |
FR2741821B1 (en) * | 1995-12-05 | 1998-02-20 | Tami Ind | INORGANIC FILTRATION TUBULAR ELEMENT HAVING INCREASED FILTRATION SURFACE AND MECHANICAL STRENGTH |
FR2785831B1 (en) * | 1998-11-18 | 2001-11-23 | Orelis | POROUS MONOLITHE SUPPORT OF A FILTER ELEMENT AND FILTER ELEMENT |
DE102004060183B4 (en) * | 2004-12-14 | 2011-06-16 | Saint-Gobain Industriekeramik Rödental GmbH | Tangential flow filter with optimized duct geometry and arrangement |
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US3737043A (en) * | 1972-06-12 | 1973-06-05 | Aqua Chem Inc | Membrane module |
US4894160A (en) * | 1987-09-04 | 1990-01-16 | Ngk Insulators, Ltd. | Honeycomb structure for fluid filtration |
US5104546A (en) * | 1990-07-03 | 1992-04-14 | Aluminum Company Of America | Pyrogens separations by ceramic ultrafiltration |
WO1993007959A1 (en) * | 1991-10-16 | 1993-04-29 | Cerasiv Gmbh Innovative Produkte Und Anwendungen Keramischer Werkstoffe | Ceramic filtering element for tangential flow filtration of liquids and gasses |
US5607586A (en) * | 1994-06-08 | 1997-03-04 | T.A.M.I. Industries | Multichannel inorganic element for filtering a fluid |
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US4069157A (en) | 1975-11-20 | 1978-01-17 | E. I. Du Pont De Nemours And Company | Ultrafiltration device |
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FR2693921B1 (en) | 1992-07-24 | 1994-09-30 | Tech Sep | Monolithic ceramic support for tangential filtration membrane. |
-
1994
- 1994-09-28 FR FR9411568A patent/FR2724850B1/en not_active Expired - Fee Related
-
1995
- 1995-08-24 DE DE69515773T patent/DE69515773T2/en not_active Expired - Lifetime
- 1995-08-24 PT PT95401943T patent/PT704236E/en unknown
- 1995-08-24 AT AT95401943T patent/ATE190864T1/en not_active IP Right Cessation
- 1995-08-24 ES ES95401943T patent/ES2145232T3/en not_active Expired - Lifetime
- 1995-08-24 DK DK95401943T patent/DK0704236T3/en active
- 1995-08-24 EP EP95401943A patent/EP0704236B1/en not_active Expired - Lifetime
- 1995-09-14 JP JP26101395A patent/JP3150275B2/en not_active Expired - Fee Related
- 1995-09-19 US US08/530,934 patent/US5895572A/en not_active Expired - Fee Related
- 1995-09-27 CA CA002159264A patent/CA2159264C/en not_active Expired - Fee Related
-
2000
- 2000-05-25 GR GR20000401197T patent/GR3033506T3/en not_active IP Right Cessation
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WO1993007959A1 (en) * | 1991-10-16 | 1993-04-29 | Cerasiv Gmbh Innovative Produkte Und Anwendungen Keramischer Werkstoffe | Ceramic filtering element for tangential flow filtration of liquids and gasses |
US5454947A (en) * | 1991-10-16 | 1995-10-03 | Cerasiv Gmbh Innovatives Keramik-Engineering | Ceramic filter element for tangential flow filtration of liquids and gases |
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Title |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6533840B2 (en) | 1994-07-29 | 2003-03-18 | Battelle Memorial Institute | Microchannel laminated mass exchanger and method of making |
US6352577B1 (en) * | 1994-07-29 | 2002-03-05 | Battelle Memorial Institute | Microchannel laminated mass exchanger and method of making |
US6375014B1 (en) * | 1997-04-09 | 2002-04-23 | Societe Des Ceramiques Techniques | Graded permeability macroporous support for crossflow filtration |
US8062521B2 (en) * | 1998-05-29 | 2011-11-22 | Crystaphase Products, Inc. | Filtering medium and method for contacting solids-containing feeds for chemical reactors |
US20030155290A1 (en) * | 2000-02-21 | 2003-08-21 | Philippe Chanaud | Multichannel element and method for making same |
US10500581B1 (en) | 2003-03-25 | 2019-12-10 | Crystaphase International, Inc. | Separation method and assembly for process streams in component separation units |
US10525456B2 (en) | 2003-03-25 | 2020-01-07 | Crystaphase International, Inc. | Separation method and assembly for process streams in component separation units |
US10543483B2 (en) | 2003-03-25 | 2020-01-28 | Crystaphase International, Inc. | Separation method and assembly for process streams in component separation units |
US7875176B2 (en) | 2009-03-06 | 2011-01-25 | Porous Media Corporation | Membrane module for fluid filtration |
US20100224540A1 (en) * | 2009-03-06 | 2010-09-09 | Rolchigo Philip M | Membrane Module for Fluid Filtration |
CN102858438A (en) * | 2010-03-10 | 2013-01-02 | 高技术与膜工业公司 | Substrate geometry for a filtration membrane |
CN102858438B (en) * | 2010-03-10 | 2016-01-20 | 高技术与膜工业公司 | For the substrate geometry of filtration membrane |
US10744426B2 (en) | 2015-12-31 | 2020-08-18 | Crystaphase Products, Inc. | Structured elements and methods of use |
US11000785B2 (en) | 2015-12-31 | 2021-05-11 | Crystaphase Products, Inc. | Structured elements and methods of use |
US10557486B2 (en) | 2016-02-12 | 2020-02-11 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10738806B2 (en) | 2016-02-12 | 2020-08-11 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10662986B2 (en) | 2016-02-12 | 2020-05-26 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10876553B2 (en) | 2016-02-12 | 2020-12-29 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10920807B2 (en) | 2016-02-12 | 2021-02-16 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US10655654B2 (en) | 2016-02-12 | 2020-05-19 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US11156240B2 (en) | 2016-02-12 | 2021-10-26 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US11754100B2 (en) | 2016-02-12 | 2023-09-12 | Crystaphase Products, Inc. | Use of treating elements to facilitate flow in vessels |
US11052363B1 (en) | 2019-12-20 | 2021-07-06 | Crystaphase Products, Inc. | Resaturation of gas into a liquid feedstream |
US11731095B2 (en) | 2019-12-20 | 2023-08-22 | Crystaphase Products, Inc. | Resaturation of gas into a liquid feedstream |
US11752477B2 (en) | 2020-09-09 | 2023-09-12 | Crystaphase Products, Inc. | Process vessel entry zones |
Also Published As
Publication number | Publication date |
---|---|
PT704236E (en) | 2000-07-31 |
DE69515773T2 (en) | 2000-10-12 |
GR3033506T3 (en) | 2000-09-29 |
JPH08173771A (en) | 1996-07-09 |
ES2145232T3 (en) | 2000-07-01 |
EP0704236B1 (en) | 2000-03-22 |
ATE190864T1 (en) | 2000-04-15 |
CA2159264C (en) | 2002-03-26 |
DK0704236T3 (en) | 2000-08-28 |
EP0704236A1 (en) | 1996-04-03 |
FR2724850A1 (en) | 1996-03-29 |
CA2159264A1 (en) | 1996-03-29 |
JP3150275B2 (en) | 2001-03-26 |
DE69515773D1 (en) | 2000-04-27 |
FR2724850B1 (en) | 1997-08-01 |
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